EP 3167264 A1 20170517 - DIFFERENTIAL PRESSURE MEASURING CELL
Title (en)
DIFFERENTIAL PRESSURE MEASURING CELL
Title (de)
DIFFERENZDRUCKMESSZELLE
Title (fr)
CELLULE DE MESURE DE PRESSION DIFFÉRENTIELLE
Publication
Application
Priority
- DE 102014109491 A 20140708
- EP 2015062699 W 20150608
Abstract (en)
[origin: WO2016005120A1] A differential pressure measuring cell (100) comprises a measuring membrane (110); two opposing bodies (140, 170); and one converter (120), wherein the measuring membrane (110) is arranged between the opposing bodies (140, 170) and is connected in a pressure-tight manner to the two opposing bodies, forming in each case one measuring chamber (160, 190), wherein the opposing bodies (140, 170) each have a pressure duct (164, 194) through which a pressure (p1, p2) can be made to act on the respective measuring chamber (160, 190), wherein the converter (120) is provided in order to convert a deformation of the measuring membrane (110), which deformation is dependent on a difference between the pressures (p1, p2), into an electrical signal; wherein the opposing bodies (140, 170) each have a chamber section (142, 172) oriented toward the measuring membrane (110) and a rear wall section (144, 174) oriented away from the measuring membrane (110) with, between these, a decoupling chamber (162, 192), wherein the chamber sections (142, 172) each have an equalizing duct (163, 193) between the measuring chamber (160, 190) and the decoupling chamber (162, 192), wherein the decoupling chamber (162, 192) has a diameter that is at least as large as the diameter of the measuring chamber (160, 190).
IPC 8 full level
G01L 13/02 (2006.01); G01L 15/00 (2006.01); G01L 19/06 (2006.01)
CPC (source: CN EP US)
G01L 13/025 (2013.01 - EP US); G01L 13/028 (2013.01 - CN); G01L 15/00 (2013.01 - EP US); G01L 19/0618 (2013.01 - EP US)
Citation (search report)
See references of WO 2016005120A1
Citation (examination)
US 2014157905 A1 20140612 - TOKUDA TOMOHISA [JP], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2016005120 A1 20160114; CN 106489070 A 20170308; DE 102014109491 A1 20160211; EP 3167264 A1 20170517; US 10247631 B2 20190402; US 2017146418 A1 20170525
DOCDB simple family (application)
EP 2015062699 W 20150608; CN 201580035473 A 20150608; DE 102014109491 A 20140708; EP 15726994 A 20150608; US 201515323481 A 20150608